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On the Value of Changes in Life Expectancy: Blips versus Parametric Changes

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Author Info

  • Johannesson, Magnus

    ()
    (Department of Economics)

  • Johansson, Per-Olov

    ()
    (Department of Economics)

  • Löfgren, Karl-Gustaf

    (Dept. of Economics, University of Umeå)

Abstract

Previous studies indicate that the general public would prefer to reallocate medical resources from old people to young ones, and also has a low WTP for measures that increase the survival probability at an advanced age. In this paper, we present an analysis of the value of a ‘blip’, i.e. an immediate small reduction, in the hazard rate for a random sample of Swedes. Since the risk reduction is age-independent (2 ‘extra saved lives’ out of 10,000 during the next year), we can examine how the WTP and the implied value of a statistical life vary with age. We also show how blip data can be used to obtain a lower bound for the value of a parametric, i.e. permanent, change in an individual’s hazard rate. This approach avoids asking respondents to perform the tricky task of estimating, for example, their entire future survival and income paths, a task which is necessary in order to estimate the WTP for a change lasting over their remaining life cycle. The estimated willingness to pay as well as the implied value of a statistical life are very reasonable, The value of life exhibits an inverted-U shape with respect to age, peaking at the age of 40, and falls in the $3 to $7 million interval where most reasonable estimates are clustered according to Viscusi’s (1992) survey.

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Bibliographic Info

Paper provided by Stockholm School of Economics in its series Working Paper Series in Economics and Finance with number 152.

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Length: 23 pages
Date of creation: Jan 1997
Date of revision:
Publication status: Published in Journal of Risk and Uncertainty, 1997, pages 221-240.
Handle: RePEc:hhs:hastef:0152

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Web page: http://www.hhs.se/
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Keywords: Willingness to pay; insurance; life expectancy; statistical life; ageing;

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